{% extends "admin/base.html" %}

{% block title %}Server Management{% endblock %}

{% block header_title %}Server Management{% endblock %}

{% block content %}
<div class="space-y-8">
    <!-- Add New Server Form -->
    <div class="card-style">
        <h2 class="card-header text-2xl font-bold mb-4 pb-2">Add New Backend Server</h2>
        <form action="{{ url_for('admin_add_server') }}" method="post">
            <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
            <div class="grid grid-cols-1 md:grid-cols-5 gap-4">
                <div>
                    <label for="server_name" class="block text-sm font-medium text-current">Server Name</label>
                    <input type="text" name="server_name" id="server_name" placeholder="e.g., Local Mac Studio" required class="mt-1 block w-full px-3 py-2 rounded-md shadow-sm">
                </div>
                <div>
                    <label for="server_url" class="block text-sm font-medium text-current">Server URL</label>
                    <input type="url" name="server_url" id="server_url" placeholder="http://127.0.0.1:11434" required class="mt-1 block w-full px-3 py-2 rounded-md shadow-sm">
                </div>
                <div>
                    <label for="server_type" class="block text-sm font-medium text-current">Server Type</label>
                    <select name="server_type" id="server_type" class="mt-1 block w-full px-3 py-2 rounded-md shadow-sm" onchange="updateFormDefaults(this)">
                        <option value="ollama" selected>Ollama (Local)</option>
                        <option value="cloud">Ollama Cloud</option>
                        <option value="vllm">vLLM (OpenAI-Compatible)</option>
                        <option value="openrouter">OpenRouter (Aggregator)</option>
                        <option value="openllm">OpenLLM (BentoML)</option>
                        <option value="open_webui">Open WebUI (Gateway)</option>
                        <option value="novita">Novita AI (Cloud)</option>
                    </select>
                </div>
                <div>
                    <label for="max_parallel" class="block text-sm font-medium text-current">Max Parallelism</label>
                    <input type="number" name="max_parallel_queries" id="max_parallel" value="1" min="1" class="mt-1 block w-full px-3 py-2 rounded-md shadow-sm">
                </div>
                 <div class="md:col-span-1">
                    <label for="api_key" class="block text-sm font-medium text-current">API Key (Optional)</label>
                    <input type="password" name="api_key" id="api_key" placeholder="Leave blank if not needed" class="mt-1 block w-full px-3 py-2 rounded-md shadow-sm">
                </div>
                <div class="flex items-end">
                    <button type="submit" class="w-full justify-center py-2 px-4 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-[var(--color-primary-600)] hover:bg-[var(--color-primary-700)]">Add Server</button>
                </div>
            </div>
        </form>
    </div>

    <script>
        /**
         * Automatically fills the Novita AI API endpoint when selected.
         */
        function autoFillNovita(select) {
            const urlInput = document.getElementById('server_url');
            if (select.value === 'novita' && (!urlInput.value || urlInput.value === 'http://127.0.0.1:11434')) {
                urlInput.value = 'https://api.novita.ai/v3/openai';
            }
        }
    </script>

    <!-- Detailed Deployment & Backend Help -->
    <div class="card-style border-l-4 border-indigo-500 bg-indigo-500/5">
        <h2 class="card-header text-xl font-bold mb-4">Deployment & Backend Guide</h2>
        <div class="grid grid-cols-1 md:grid-cols-3 gap-8 text-sm">
            <div class="space-y-3">
                <h3 class="font-black text-indigo-400 uppercase tracking-widest text-xs">🦙 Ollama (Local/Cloud)</h3>
                <p class="text-gray-400">The industry standard for local LLMs.</p>
                <ul class="space-y-2 list-disc list-inside text-gray-500">
                    <li><b class="text-gray-300">Install:</b> Use the <a href="/admin/instances" class="underline">Instance Manager</a> or visit <code>ollama.com</code>.</li>
                    <li><b class="text-gray-300">Cloud:</b> Use <code>https://ollama.com/api</code> with your Ollama Cloud API key.</li>
                    <li><b class="text-gray-300">Config:</b> Hub handles the <code>/api/tags</code> and <code>/api/chat</code> endpoints automatically.</li>
                </ul>
            </div>
            <div class="space-y-3">
                <h3 class="font-black text-emerald-400 uppercase tracking-widest text-xs">🚀 vLLM & OpenLLM</h3>
                <p class="text-gray-400">High-throughput serving for production.</p>
                <ul class="space-y-2 list-disc list-inside text-gray-500">
                    <li><b class="text-gray-300">vLLM:</b> Optimized for PagedAttention. Install via Instance Manager.</li>
                    <li><b class="text-gray-300">OpenLLM:</b> Built on BentoML. To install: <code>pip install openllm</code> or use our auto-installer.</li>
                    <li><b class="text-gray-300">Usage:</b> <code>openllm start llama3</code>. Default port: 3000.</li>
                </ul>
            </div>
            <div class="space-y-3">
                <h3 class="font-black text-purple-400 uppercase tracking-widest text-xs">🌐 Gateways (Open WebUI)</h3>
                <p class="text-gray-400">Connecting to other AI frontends.</p>
                <ul class="space-y-2 list-disc list-inside text-gray-500">
                    <li><b class="text-gray-300">Purpose:</b> Use the models already configured in your Open WebUI instance.</li>
                    <li><b class="text-gray-300">API:</b> Ensure "API Key" is enabled in Open WebUI settings.</li>
                    <li><b class="text-gray-300">URL:</b> Usually <code>http://127.0.0.1:3000/api</code>.</li>
                </ul>
            </div>
        </div>
    </div>

    <script>
        function updateFormDefaults(select) {
            const urlInput = document.getElementById('server_url');
            const defaults = {
                "ollama": "http://127.0.0.1:11434",
                "cloud": "https://ollama.com/api",
                "vllm": "http://127.0.0.1:8000/v1",
                "openllm": "http://127.0.0.1:3000/v1",
                "open_webui": "http://127.0.0.1:3000/api",
                "novita": "https://api.novita.ai/v3/openai"
            };
            if (defaults[select.value]) {
                urlInput.value = defaults[select.value];
                urlInput.placeholder = defaults[select.value];
            }
        }
    </script>

    <!-- Existing Servers List -->
    <div class="card-style">
        <h2 class="card-header text-2xl font-bold mb-4 pb-2">Configured Servers</h2>
        <div class="overflow-x-auto">
            <table class="min-w-full">
                <thead>
                    <tr>
                        <th scope="col" class="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">Name</th>
                        <th scope="col" class="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">URL</th>
                        <th scope="col" class="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">Type</th>
                        <th scope="col" class="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">API Key</th>
                        <th scope="col" class="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">Status</th>
                        <th scope="col" class="px-6 py-3 text-left text-xs font-medium text-gray-400 uppercase tracking-wider">Models</th>
                        <th scope="col" class="px-6 py-3 text-right text-xs font-medium text-gray-400 uppercase tracking-wider">Actions</th>
                    </tr>
                </thead>
                <tbody class="divide-y divide-white/10">
                    {% for server in servers %}
                    <tr>
                        <td class="px-6 py-4 whitespace-nowrap text-sm font-medium text-current">{{ server.name }}</td>
                        <td class="px-6 py-4 whitespace-nowrap text-sm font-mono">{{ server.url }}</td>
                        <td class="px-6 py-4 whitespace-nowrap text-sm">
                            <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full 
                                {% if server.server_type == 'vllm' %}bg-purple-200 text-purple-800
                                {% elif server.server_type == 'novita' %}bg-emerald-200 text-emerald-800
                                {% else %}bg-blue-200 text-blue-800{% endif %}">
                                {{ server.server_type | upper }}
                            </span>
                        </td>
                         <td class="px-6 py-4 whitespace-nowrap text-sm">
                            {% if server.has_api_key %}
                                <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-gray-200 text-gray-800">Configured</span>
                            {% else %}
                                <span class="text-gray-500">-</span>
                            {% endif %}
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap text-sm">
                            {% if not server.is_active %}
                                <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-gray-500/20 text-gray-400 border border-gray-500/30">Disabled</span>
                            {% elif server.last_error %}
                                <button
                                    class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-yellow-100 text-yellow-800 cursor-pointer hover:bg-yellow-200"
                                    data-modal-title="Server Error Details"
                                    data-modal-body="<p>The last attempt to refresh models from this server failed with the following error:</p><div class='mt-4 p-3 rounded-md bg-red-900/50 border border-red-500 text-red-300 font-mono text-sm'>{{ server.last_error | e }}</div>"
                                >
                                    Warning
                                </button>
                            {% else %}
                                <span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-green-100 text-green-800">Active</span>
                            {% endif %}
                        </td>
                        <td class="px-6 py-4 text-sm">
                            <span class="font-medium">{{ server.available_models|length if server.available_models is not none else 'N/A' }} model(s)</span>
                            {% if server.models_last_updated %}
                                <span class="text-xs text-gray-400 block">(updated {{ server.models_last_updated.strftime('%Y-%m-%d %H:%M') }})</span>
                            {% endif %}
                        </td>
                        <td class="px-6 py-4 whitespace-nowrap text-right text-sm font-medium">
                            <div class="flex justify-end gap-3 items-center">
                                <form action="{{ url_for('admin_toggle_server_active', server_id=server.id) }}" method="post" class="inline">
                                    <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                                    <button type="submit" class="{% if server.is_active %}text-orange-400 hover:text-orange-500{% else %}text-emerald-400 hover:text-emerald-500{% endif %}" title="Toggle active status">
                                        {% if server.is_active %}Disable{% else %}Enable{% endif %}
                                    </button>
                                </form>
                                <span class="text-gray-600">|</span>
                                <a href="{{ url_for('admin_edit_server_form', server_id=server.id) }}" class="text-yellow-400 hover:text-yellow-600">Edit</a>
                                <a href="{{ url_for('admin_manage_server_models', server_id=server.id) }}" class="text-[var(--color-primary-500)] hover:text-[var(--color-primary-700)]">Manage Models</a>
                                <form action="{{ url_for('admin_refresh_models', server_id=server.id) }}" method="post" class="inline">
                                    <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                                    <button type="submit" class="text-blue-400 hover:text-blue-600" title="Purge stale models and rescan server catalog.">Refresh</button>
                                </form>
                                <form action="{{ url_for('admin_delete_server', server_id=server.id) }}" method="post" onsubmit="return confirm('Are you sure you want to delete this server?');" class="inline">
                                    <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                                    <button type="submit" class="text-red-500 hover:text-red-700">Delete</button>
                                </form>
                            </div>
                        </td>
                    </tr>
                    {% else %}
                    <tr>
                        <td colspan="7" class="px-6 py-4 text-center">No servers configured.</td>
                    </tr>
                    {% endfor %}
                </tbody>
            </table>
        </div>
    </div>
</div>
{% endblock %}